knifelike

aciculate acuate acuminate acuminous acute apical barbed briery cuspate cuspidate edged fine gnawing ground fine honed horned jagged keen keen-edged knife-edged lancinating needle-pointed needlelike peaked piercing pointed pointy prickly pronged razor-sharp salient serrated sharp-edged sharpened shooting spiked spiky spiny splintery stabbing stinging tapered tapering thorny tined tipped unblunted whetted